I think lots of people are desperate to believe he's very unhappy with the evil temptress who has stolen him away and will see the light, leave her and return to good old Blighty.
My MIL is a prime example of this, but she also excuses historical sex abuse cases like Savile and Glitter because 'times were different then and 13 and 14 year olds used to literally wait at stage doors and throw themselves at stars.'
She's got a lot of internalised misogyny and hates Megan.